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How do I fix PyDev “Undefined variable from import” errors?
... a Python project using PyDev in Eclipse, and PyDev keeps generating false errors for my code. I have a module settings that defines a settings object. I import that in module b and assign an attribute with:
...
Using multiple delimiters in awk
...n the input field separator.
See another example:
$ cat file
hello#how_are_you
i#am_very#well_thank#you
This file has two fields separators, # and _. If we want to print the second field regardless of the separator being one or the other, let's make both be separators!
$ awk -F"#|_" '{print ...
An error occurred while validating. HRESULT = '8000000A'
I have been receiving this error for a while when using devenv on an automatic build. I have gone through every website I can find, and the usual answers mention refreshing dependencies (Which I believe fixes it for manual deployment, but not for automatic) and removing the source control coding fro...
一次解决Linux下-bash: ll: command not found，语法、目录不高亮显示的问...
一次解决Linux下-bash: ll: command not found，语法、目录不高亮显示的问题linux-bashrc-ll-dircolor通过修改用户目录下的 bashrc文件，添加ll,l命令别名，及语法目录高亮显示。
vi ~/.bashrc 放开上面几行
# You may uncomment the following lines if y...
Twitter API returns error 215, Bad Authentication Data
...= false". We have traced down that it is cURL SSL certificate verification error, that makes Twitter library always return empty response.
– lubosdz
May 14 '15 at 15:20
add a ...
#define macro for debug printing in C?
...r macro
else
do_something_useful(x, y);
And the else is now a syntax error. The do { ... } while(0) loop avoids both these problems.
There's one other way of writing the macro which might work:
/* BAD - BAD - BAD */
#define debug_print(...) \
((void)((DEBUG) ? fprintf(stderr, __...
Unable to hide welcome screen in Emacs
I want to hide the welcome screen.
6 Answers
6
...
Linux command: How to 'find' only text files?
After a few searches from Google, what I come up with is:
16 Answers
16
...
Are there any standard exit status codes in Linux?
... another answer, but to a non-canonical URL.)
1: Catchall for general errors
2: Misuse of shell builtins (according to Bash documentation)
126: Command invoked cannot execute
127: "command not found"
128: Invalid argument to exit
128+n: Fatal error signal "n"
255: Exit status ou...
From Arraylist to Array
I want to know if it is safe/advisable to convert from ArrayList to Array?
I have a text file with each line a string:
9 An...